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1. (WO2018200382) MOLD LOCK REMEDIATION

Pub. No.:    WO/2018/200382    International Application No.:    PCT/US2018/028870
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 24 01:59:59 CEST 2018
IPC: H04N 1/409
B29C 64/386
B29C 64/40
Applicants: DESKTOP METAL, INC.
Inventors: CHIN, Ricardo
REEVES, Blake Z.
Title: MOLD LOCK REMEDIATION
Abstract:
Mold lock is remediated by performing a layer-by-layer, two-dimensional analysis to identify unconstrained removal paths for any support structure or material within each two- dimensional layer, and then ensuring that aligned draw paths are present for all adjacent layers, all as more specifically described herein. Where locking conditions are identified, a sequence of modification rules are then applied, such as by breaking support structures into multiple, independently removable pieces. By addressing mold lock as a series of interrelated two- dimensional geometric problems, and reserving three-dimensional remediation strategies for more challenging, complex mold lock conditions, substantial advantages can accrue in terms of computational speed and efficiency.